Machine for making lacing-hooks.



H. H. EATON & G. GODDU.

MACHINE FOR MAKING LAOING HOOKS.

APPLICATION FILED JULY 31. 1903.

6 SHEBT9SHEET 1.

Patented. Aug. 24, 1909.

llllill WITNESSES H. H. EATON G. GODDU. MACHINE FOR MAKING LAOING HOOKS.

APPLIGATION FILED JULY 31, 1903.

& WM

ANDREW. B. (at-mum cu. pnawmnosnnusns. WASHINGTON, v c.

H. H EATON & G. GODDU. MACHINE FOR MAKING LAOING HOOKS.

APPLICATION FILED JULY 31,1903.

Patented Aug. 24, 1909.

e sums-slum a.

WIT

H. H. EATON & G. GODDU.

MACHINE FOR MAKING LAGING HOOKS.

Patented A 24. 1909.

6 SH ET SHEET 4.

MEET

EEEEE Aug. 24, 1909. 6 SHEETS-SHEET 5.

Patented H. H. EATON & G. GODDU. MACHINE FOR MAKING LACING HOOKS.

APPLICATION FILED JULY 31, 1903. 932,005.

H. H. EATON & G. GODDU.

MACHINE FOR MAKING LAOING HOOKS.

APPLIOATION FILED JULY 31, 1903.

Patented Aug. 24. 1909.

e SHEETSSHEET a UNITE STATES rarnnr ra ion.

HARRISON H. EATON AND GEORGE GODlJ'U, OF WINCHESTER, MASSACHUSETTS,ASSIGNORS TO UNITED SHOE MACHINERY COMPANY, OF PATERSCN, NEW JERSEY, AGGRPOEATION OF NEW JERSEY.

MACHINE FOR MAKING LACING-EIOOKS.

To all whom it may concern:

Be it known that we, HARRISON H. EATON and Gnoncn Gonnn, citizens of theUnited States, residing at Winchester, in the county of Essex and Stateof Massachusetts, have invented certain new and useful Improvements inMachines for Making Lacingkiosks; and we do hereby declare the followingto be afull, clear, and exact description of the invent n, such as willenable others skilled in the art to which it appertains to make and usethe same.

The present invention relates to machines for making lacing hooks andmore particularly to machines for making lacing hooks which comprise atubular shank and a collar at the upper end of the shank which forms thebase of the hook proper and which rests upon the material to which thehook is secured by upsetting the lower end of the tubular shank.

The object of the present i vention is to provide a machine for formingthe collar and tubular shank of the hook, the embodiment of theinvention hereinafter specifically described being designed to producethe article shown in Figure 3 of the patent to Harrison H. Eaton for animproved lacing hook for shoes, No. 11,874 reissued November 27, 1900,the hook being completed by a subsequent operation.

To this end the invention contemplates is provision of a suitable diefor holding a rank, such, for instance, as is illustrated in Fig. 1 ofthe patent above referred to and a die provided with a plunger co'cperating therewith to upset the end of the blank to form the collar andtubular shank. Preferably the dies and plunger are so mounted as to havea relative movement while the blank is held between the dies, wherebythe plunger is caused to act upon the blank to form the tubular shankwhile the blank is held by the dies. We have found by causing theplunger to act upon the blank while it is held between the dies that thetubular shank is formed without any liability of breaking the plungerduring such operation. YVe therefore consider a construction having thismode of operation of value and as constituting a feature of ourinvention whether the dies are used to upset the end of the blank toform the collar and tubular shank or merely to form the tubular shank,although we prefer to utilize the dies to upset Specification of LettersPatent.

Application filed July 31, 1903.

Patented Aug. 24, 1909. Serial No. 167,673.

the end of the blank to form both the tubular shank and the collar, asthereby the number of separate operations which must be performed uponthe blank is diminished and the hooks are more quickly and cheaplyproduced. Also, preferably the plunger is so mounted with relation tothe dies that the dies are allowed to separate sufficiently to relievethe pressure exerted by the dies on the blank before the plunger iswithdrawn as thereby the pressure of the metal upon the alunger isrelieved and the plunger can be easily withdrawn without liability ofbreaking the same.

In connection with the blank holding die and the die provided with aplunger cooperating therewith to form the collar and tubular shank ofthe hook, we preferably employ a die arranged to coperate with the blankholding die-to upset the end of the blank and partially form the shankor the shank and collar prior to the operation thereon of the die forcompleting the formation of the collar and tubular shank. By providingsuch a die for partially forming the shank or the shank and collar, thedie which completes the formation of the collar and shank is subjectedto less strain and also better results are produced than is possiblewhen a single pair of dies is used.

The blank holding die may be constructed to hold separate blanks such,for instance, as illustrated in Fig. 1 of the patent above referred to.or it may be constructed to hold a blank before it is'severed from a rodor wire,,eit er form of die being within the purview of our invention.

In addition to the features of invention above referred to, ourinvention also consists in the devices, combinations, and arrangementsof parts hereinafter described and claimed, the advantages of which willbe obvious to those skilled in the art.

A preferred form of our invention is illustrated in the accompanyingdrawings in which I Fig. 1 is a longitudinal sectional view of a machineembodying the same, said ma chine with the exception of the dies foroperating upon the blanks being of old and well-known construction andonly so much of said machine being illustrated as is necessary to showthe connection of our invention therewith; Fig. 2 is a view in sideelevation of the upsetting dies, the block in which they are mounted andthe vertical slide to which the block is secured; Fig. 3 is a view infront elevation of the parts illustrated in Fig. 2; Fig. l is a detailsectional View taken on a vertical plane passing through the blankholding and upsetting dies; and Figs. 5, 6, and 7 are detail sectionalviews similar to Fig. 4, illustrating the operation of the machine inupsetting the end of a blank to form the collar and tubular shank.

The machine with which, for convenience of illustration, we have shownour invention connected, is of old and wellknown construction and isknown in the art as a doubleblow rivet machine. This machine is providedwith feeding rolls for feeding a continuous wire into the machine andwith means for cutting a blank from the wire and for transferring thecut-off blank to a stationary holding die. The machine is also providedwith two upsetting dies arranged one above the other and with means forreciprocating the upsetting dies to bring them successively into contactwith the end of the blank.

Referring to Fig. 1, 1 lndicates the frame of the machine in horizontalguideways 111 which a reciprocating carrier 2 is mounted. 1 At the frontend of the carrier 2 'a slide 3 is I mounted in vertical guideways andto this slide a block 4 is secured in which the up- 1 setting dies aremounted. The slide 2 is re- .ciprocated by means of toggle levers 5 and6 which are connected by means of a link '7 to the crank 8 of thedriving shaft 9. The slide 3 is raised and lowered through mechanism(not shown) by means of a slide 10 mounted in a casing secured to thecarrier 3 and reciprocated by means of a link 11 connecting the slidewith the link 7. The above described construction is such that .duringone reciprocation of the carrier 2the upper upsetting die is broughtinto contact with the end of the blank, the slide 3 being in its lowestposition, and during the next reciprocation of the carrier 2 the lowerupsetting die is brought into contact with the blank, the slide 3 beingin its highest posi tion, the upsetting dies being thus broughtalternately into contact with the blank. The feeding rolls are indicatedat 12 and 13 and are actuated from the main driving shaft 9 throughmechanism (not shown). These rolls feed a wire into the machine againsta stop 14.

The knife for cutting off a blank from the end of the wire is indicatedat 15 and is secured to or formed integral with a slide mounted toreciprocate in a horizontal guideway formed in a block secured to theinner face of the cross-bar at the front of the machine frame. Thisslide is also provided with agripper which holds the cut-off blankduring the reciprocation of the slide to transfer the blank in front ofthe stationary die 16 secured in the cross-bar at the front of themachine frame. The slide 15 is reciprocated through suitable mechanismactuated from the driving shaft 9 by means of the connecting .rod 17.The blank is held in position in front of the die 16 and is driven intothe die by the action of one of the upsetting dies and is held thereinduring the formation of the collar and shank of the hook. After theupsetting dies have acted upon the blank the blank is discharged fromthe holding die 16 by means of a discharge plunger 18 secured to acylindrical block 19 mounted to slide in a cross-bar atthe front of themachine frame, the plunger being actuated at the proper time by means ofthe plunger 20 which is actuated through suitable mechanism from thedriving shaft 9.

The construction and mode of operation of the machine so far describedis the same as that of the well-known rivet machine hereinbeforereferred to, such machine having been illustrated merely for the purposeof showing suitable mechanism for actuating the upsetting dies to formthe collar and tubular shank of the hook, it being understood that. anysuitable mechanism might be provided for actuating the upsetting diesand that our invention is in no wise limited to the particular machineillustrated. The block t to which the upsetting dies are secured ismounted upon the slide 8 by means of a stud 2.1 projecting rearwardlyfrom the block 4: into a hole in the slide 3 and is secured to the slideby means of a clampin bolt 2 passing through an open-ended curved slotin the upper end of the block whereby the block can be adjusted upon theslide 3 by swinging it about the stud 21 as a center. A screw passingthrough a lu on the slide 3 and bearing against the side of the upperend of the block above the screw 22 serves as a convenient means foradjusting the block.

Referring particularly to Figs. 5, 6 and. T the die for upsetting theend of the blank to partially form the shank of the hook which we haveprovided in the embodiment of our invei'ition illustrated is indicatedat 24-. The body portion of this die is cylin drical and is received inasocket in the block 4 and is clamped therein by means of a clamping bolt25 which extends transversely to the axis of the die and is providedwith a recess to fit over the cylindrical portion of the die, this boltbeing actuated to clamp the die by means of a nut 26 having ascrewthreaded engagement with a projecting end of the bolt at one sideof the block at as is clearly shown in Fig. 3. The body portion of thedie 24 is bored axially and at its rear end is provided with a block 27having a screw-threaded engagement therewith and being locked inposition by means of the locking nut 28. A cylindrical block 29 ismounted to slide in the die 24 and is provided with a discharge plunger30 projecting into the cavity of the die. The adjacent ends of theblocks 2? and are reduced in sizeto form shoulders between which acoiled spring 30 is interposed by means of which the plunger 30 isforced outwardly as thedie is withdrawn from contact with the blank todischarge the blank from the die and prevent it from being withdrawnfrom the holding die 16. When the setting die is brought into engagementwith the end of the blan r as illustrated in Fig. 5 the plunger 30 ispressed baclnrardly, its rearward movementbeing limited by the contactof the block 29 with the block 27. Preferably the block 27 will beadjusted so that when the plunger is in its rearward position the end ofthe plunger will be slightly below the bottom of the die cavity asillustrated in Fig. 5 so that the end of the blank will be received inthe depression thus formed in the bottom of the die cavity and properlycentered. Also the extreme end of the blank will not be upset by thedies so that a projection will be left by means of which the blank willbe properly centered in the die which completes the formation of thecollar and shank.

The die which we have illustrated for completing the formation of thecollar and tubular shank is indicated at 31. The body portion of thisdie is also cylindrical and is mounted to slide in a bushing 32 securedin a socket in the block a beneath the die 24. The die cavity of thisdie is formed in the die block 33 seated in the face of the die 31. Thedie cavity is shaped to form the shank of the hook and the face of thedie block is below the face of the body portion 31, whereby a space isprovided between the face of the die block 33 and the stationary die 16when the body portion of the die is brought into contact with the die 16to allow for the formation of the collar as is clearly shown in Fig. 7.Projecting through the die block 33 and into the die cavity is a plunger3%. This plunger rests upon the end of a rod 35 and passes through ablock 36 secured to the end of the rod and having a sliding engagementwith the body portion 31 of the die which is bored axially to receivethe block. The rod 35 is mounted to slide in a bushing 37 having ascrew-threaded engagement with the block 4 and provided with a reducedend which projects into the aperture in the body portion of the die. Thesliding movement of the rod 35 is limited by a flange at the front endof the rod which engages the end of the bushing 37 and by an adjustablenut 38 on the rear end of the rod. The die is normally held in theposition illustrated in Fig. 4 by means of a sheet metal spring 39 oneend of which is secured to the block 4 by means of the screw 40, and theother end of which is slotted to extend upon each side of the bodyportion of the die and press against a flange at its forward end. Theforward movement of the die under the force of the spring is limited bya plate 41 secured to the block t against which the spring rests whenthe die is in its forward position. The upsetting die is thus yieldingiymounted with relation to the plunger 34.

'When the upsetting die is brought into contact with the blank theplunger 34L is first driven backward into the position indicated in Fig.6 and the blank is centered in the die by the engagement of theprojection at the end. of the blank with the bottom of the die cavity.During the continued forward movement of the block l the upsetting dieis held in contact with the blank by the force of the spring 39 and isdriven backward into the position illustrated in Fig. 7, thereby causingthe plunger to be projected into the die cavity, the tension of thespring 39 being such as to cause the metal displaced by the plunger tofill the die cavity and to flow into the space between the face of thedie block 33 and the die 16. The final completion of the collar andshank is produced by a positive pressure when the upsetting die reachesthe limit of its rearward movement with relation to the plunger. Duringthe backward movement of the block 4t to separate the dies and withdrawthe plunger 34: the plunger remains stationary until the bushing 37 isbrought into contact with the nut 38 on the rod 35. The pressure exertedby the dies on the collar and shank of the hook and consequently thepressure of the metal upon the plunger is thus relieved and the plungeris easily withdrawn during the continued backward movement of the block4.

Having thus indicated the nature and scope of our invention and havingspecifically described the preferred embodiment thereof, we claim as newand desire to secure by Letters Patent.

1. A machine for making lacing hooks which comprise a body portion and atubular shank, having, in combination, a blank holding die to receivethat portion of the blank which is to form the body portion of the hook,a die provided with a plunger arranged to receive the remaining portionof the blank projecting from the holding die, and means for relativelyactuating the dies and plunger to cause the plunger to act on theremaining portion of the blank to form a tubular shank thereon whileheld in the dies.

2. A machine for making lacing hooks which comprise a body portion, acollar at the base of the body portion, and a tubular shank, having, incombination, a blank holding die to receive that portion of the blankwhich is to form the body portion of the hook, a die cooperatingtherewith provided with a plunger, said die being yieldingly mountedwith relation to the plunger and arranged to receive the end of theblank before the blank is acted upon by the plun= ger, and means foractuating the dies and plunger to upset the end of the blank to form acollar and tubular shank.

3. A machine for making lacing hooks which comprise a body portion, acollar at the base oi? the body portion, and a tubular shank, having, incombination, a stationary blank holding die to receive that portion ofthe blank which is to form the body portion of the hook, die providedwith a plunger movable toward and from the stationary die andcooperating therewith to upset the remaining portion of the blank toform a col lar and tubular shank, said die being yieldingly mounted withrelation to the plunger to cause the plunger to act on the blank whileheld between the dies.

4. A machine for making hooks which comprise a body portion and atubular shank, having, in combination, a blank holding die to receivethat portion of the blank which is to form the body portion of the hook,a die cooperating therewith provided with a plunger, said die beingyieldingly mounted with relation to the plunger, and means forrelatively actuating the dies and plunger to cause the plunger to act onthe blank to form a tubular shank thereon while held in the dies.

5. A machine for making lacing hooks which comprise a body portion and atubular shank, having, in combination, a blank holding die to receivethat portion of the blank which is to form the body portion of the hook,a die provided with a plunger arranged to receive the remaining portionof the blank projecting from the holding die, means for actuating thedies and plunger to upset. 'the remaining portion of the blank to form atubular shank and to' withdraw the plunger after the pressure exerted bythe dies on the blank is relieved.

6. A machine for making lacing'hooks which comprise a body portion, acollar at the base of the body portion, and a tubular shank, having, incombination, a blank holding die to receive that portion of the blankwhich is to form the body portion or" the hook, a die provided with aplunger arranged to receive the remaining portion of the blankprojecting from the holding die and cooperate therewith to upset theremaining portion of the blank to form a collar and tubular shank andmeans for relatively actuating the dies and plunger to cause theplungerto displace the metal of the blank while held between the diesand thereafter to cause the dies to exert a positive pressure upon thedisplaced metal.

In testimony whereof we aflix our signatures, in presence of twowitnesses.

HARRISON H. EATON. GEORGE GODDU.

\Vitnesses:

FRED O. FISH, HORACE VAN EVEREN.

